What documentation must accompany the request for a new license according to California regulations?

The requirement to provide proof of previous licenses when requesting a new license is essential because it establishes the applicant's history and credibility in their area of operation. This documentation serves as verification that the applicant has had prior experience and compliance with licensing regulations. It helps regulatory bodies assess whether the applicant has maintained a standard of practice that aligns with state requirements. This oversight is crucial in ensuring that new licensees are qualified and responsible, thereby supporting public trust in the licensing system.

The other options, while they may seem relevant to some aspect of the application process, do not meet the specific documentation criteria set forth in California regulations for obtaining a new license. For instance, information on sales or verification of residency may be pertinent in specific contexts but are not universally required as part of the initial license application. Therefore, proof of previous licenses is a clear prerequisite for demonstrating an established track record in the field, which is why it is the correct answer.